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MBRCentral.com is your source of information for OVIVO® MBR products & services. Constantly evolving, MBRCentral.com will provide you with all the tools you need regarding OVIVO® MBR.
  • HOME
  • CASE STUDIES
  • SOLUTIONS
    • Ovivo® MBR
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Home Case Study

Nisqually Tribe

Nisqually Tribe

PROJECT HIGHLIGHTS

  • Under construction, 2014
  • Commercial WW, Greenfield
  • Permit(s); Not Required
  • 10/NA/0.2 (TN/TP/Turbidity
  • MMF Capacity: 0.3 MGD
  • 1 FTE (Full-Time Employee)
  • Casino,Prison => Subsurface disposal
A compact design to maximize flow per total footprint

DESCRIPTION

MBR system was required to treat combined flows from a casino and prison to be discharged to the groundwater. The Tribe decided to employ membrane bioreactor (MBR) technology in part to increase the level of wastewater treatment. MBRs were also selected for their ability to minimize site footprint requirements on the property and provide the capability for remote facility operations, nutrient removal. The Nisqually plant is currently under construction.

LOCATION

Olympia, WA

IMAGES

GENERATE PDF VERSION

PROJECT OVERVIEW

System Type(s) OVIVO® MBR
Previous Facility Type Septic Field
Owner Nisqually Tribe
Engineer Parametrix
Contractor Prospect Construction
Operations
Delivery Method Pre-Selection
Time To Retrofit
Total Installed Project Cost $

PLANT DESIGN INFORMATION

Fine Screen Type Drum Screen
Aperture or Slot Size 3 mm
Supplemental Aeration Technology Fine Bubble, Tubes
MBR Blower Type Positive Dispacement
Solids Management Data Aerobic Digestion
SCADA System WonderWare
Disinfection Method UV
# Process Stages 3

MBR (MEMBRANE ZONE) DESIGN

Filtration Mode Pump assisted gravity
# of Reactors : 2
Submerged Membrane Unit (SMU) OV400
# SMU 8
Design Flux (MMF) 8.71 gfd
Minimum Temperature 10°C
Peak Factor 4.5
# of Maintenance Cleans 4
Mt. St. Mary’s University
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